Jig



Sept. 29, 1964 E. P. MEUWISSEN JIG 2 Sheets-Sheet 1 INVENTOR. EDWIN PAUL Msu mass/v BY M wdzflq A T TORNE Y5 Filed Sept. 7. 1962 Sept. 29, 1964 P. MEUWISSEN JIG 2 Sheets-Sheet 2 Filed Sept. 7, 1962 FIG.5e

INVENTOR EDWIN PAUL MEUW/SSEN BY M YW M A T TOPNE YS United States Patent 3,150,452 JIG Edwin Paul Meuwissen, 3241 Girard Ave. S., Minneapolis, Minn. Filed Sept. 7, 1962, Ser. No. 222,125 1 Claim. (Cl. 33-197) My invention relates to improvements in jigs for cutting recesses in doors and door jambs for looks, strikes, and hinges.

The primary object of my invention is the provision of a jig capable of supporting a selected one of a plurality of templates each having different size and/ or configurations therein, which may be quickly and accurately anchored in operative position either on the side edge of a door or, alternatively, a door jamb.

A still further object of my invention is the provision of a device of the class above described which, when used in connection with a door jamb, provides means for adjusting the jig with respect to the jamb to achieve the proper spacing of the piece of hardware in question with respect to said jamb.

A still further object of my invention is the provision of a jig of the class immediately above described which incorporates a minimum of working parts and is extremely easy to use and accurate.

A further object of my invention is the provision of a device of the class described which may be inexpensively produced, which is simple in construction, and rugged and durable.

The above and still further objects of my invention will become apparent from the following detailed specification, appended claims and attached drawings.

Referring to the drawings wherein like characters indicate like parts throughout the several views:

FIG. 1 is a view in side elevation showing my novel structure in operative position on the side edge of a door;

FIG. 2 is a view partly in elevation and partly in section as seen from the line 22 of FIG. 1;

FIG. 3 is a view in vertical section as seen from the line 33 of FIG. 2;

FIG. 4 is a view in side elevation of my novel jig in operative position on a door jamb;

FIG. 5 is a view partly in elevation and partly in section as seen from the line 5-5 of FIG. 4; and

FIG. 6 is a view in horizontal section as seen from the line 66 of FIG. 5.

Referring with greater particularity to the drawings, the numeral 1 indicates a generally rectangular frame, the opening 2 of which is adapted to snugly receive a selected one of a plurality of templates 3. Secured to the under surface 4 of the frame 1 and projecting laterally outwardly therefrom at opposite ends thereof are work engaging feet 5. The work engaging under surfaces of the feet are identified by the numeral 6. Preferably, and as shown, the feet 5 are provided with portions 7 which project inwardly from the marginal edges 8 of the opening 2 and provide shelves for supporting and imparting stability to a given template 3 when placed within the opening 2 of the frame 1. Further means for supporting a given one of the templates 3 in said opening are formed by peening of the marginal edges 8 of the frame 1, as indicated at 9, to provide further shelf elements 10.

For the purpose of detachably securing the frame 1 in operative position I provide anchoring pins 11 which project through the frame 1 and the feet 5 and are mounted therein for limited sliding movements whereby to cause the pointed inner ends 12 to be extended with respect to the work supporting under surfaces 6 of the feet 5 and to be withdrawn so as to be flush therewith. The heads 13 on the outer ends of the pins 11 limit inward movements, whereas outward movements thereof are limited by set screws or the like 14 which are received with axially extended slots 15 in the intermediate portions of the pins 11.

Common sides of the work engaging feet 5 are also formed to define work engaging surfaces 16 for a purpose which will hereinafter be explained. Working through the feet 5 from side to side thereof are adjustable abutment elements 17 preferably, and as shown, in the nature of screws having threaded engagement with bores 18.

In FIGS. 1 to 3, inclusive, wherein my novel jig is shown in conjunction with a door A, the work engaging under surfaces 6 of the feet 5 are in engagement with the side edge B of said door A. When initially so placed, the anchoring pins 11 are in the dotted line position of FIG. 1. However, impact brought to bear upon the heads 13 causes the pointed ends 12 to penetrate the frame of the door A as shown in FIG. 3. The routing tool X is then positioned in overlying relationship to the template 3a with the levelling base thereof in engagement with the tool supporting surface 19 thereof. Obviously a template 3 of any required design may be substituted for the template 3a.

In FIGS. 4 to 6, inclusive, wherein my novel jig is used in conjunction with the forming of a recess for a strike plate, not shown, in a door jamb C, the work engaging under surfaces 6 of the feet 5 are in engagement with the frame d immediately adjacent the door stop element e. As shown particularly in FIGS. 5 and 6, and in order to properly space the side edge 20 of the strike plate defining recess 21 from the adjacent side edge 22 of the stop element 2, the adjustable abutments 17 are rotated in a manner to cause engagement of the abutment forming end 23 thereof with the side edge 22 of the stop element e. At this point the anchoring pins are caused to penetrate the frame member C as shown by the dotted lines in FIGS. 4 and 5 whereby to anchor the jig in its adjusted position.

What is claimed is:

In a template supporting jig for a routing tool,

(a) a frame having a pair of work engaging feet one each projecting laterally inwardly from an opposite end thereof,

(b) said frame having a central opening for snug reception of a selected one of a plurality of templates,

(0) means for supporting a template in said opening with the upper tool-supporting surface thereof in spaced parallel relation to the work engaging under surfaces of said feet,

(d) a pair of anchoring pins one each projecting through an opposite end portion of said frame and the supporting foot associated therewith and mounted therein for limited sliding movements from positions wherein the inner ends thereof are substantially flush with the under surfaces of said feet and the outer ends thereof project outwardly from the tool-supporting surface defined by said frame and positions Wherein the outer ends of said pins are substantially flush with said tool supporting surface and the inner ends 3,150,452 3 thereof project laterally outwardly from the work engaging under surfaces of said feet, and (e) adjustable abutment elements, one each carried by one of said feet and projecting therethrough 5 1 transversely to the longitudinal dimension of said 5 3 frame in spaced parallel relationship to the work 2,709, engaging under surfaces thereof. 2,869,245

References Cited in the file of this patent UNITED STATES PATENTS Carter Jan. 27, 1925 Zern Aug. 8, 1944 Graham June 7, 1955 Bork Jan. 20, 1959 

